Patents by Inventor Ikuo Fukui

Ikuo Fukui has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20150238616
    Abstract: Provided are a solid preparation comprising an enteric solid dispersion that allows a drug in the preparation to be rapidly dissolved without impairing the dissolution of the solid preparation, and a method for producing the same. More specifically, provided are a solid preparation comprising a poorly soluble drug, an enteric polymer, an excipient and a disintegrator, a mixed powder comprising at least the excipient and the disintegrator is partly or entirely covered with a solid dispersion comprising the poorly soluble dug and the enteric polymer; and a method for producing a solid preparation, comprising steps of: spraying an enteric polymer solution in which a poorly soluble drug has been dispersed or dissolved, on a mixed powder comprising an excipient and a disintegrator; and granulating and drying a resultant.
    Type: Application
    Filed: March 6, 2015
    Publication date: August 27, 2015
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Takafumi Hoshino, Fumie Kusaki, Ikuo Fukui
  • Patent number: 9095513
    Abstract: The present invention is an enteric coated granule having controlled dissolution in water even at a small coating amount; and a preparation method thereof.
    Type: Grant
    Filed: June 15, 2007
    Date of Patent: August 4, 2015
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Mutsunori Tanji, Tadashi Matsui, Shuichiro Yuasa, Yuichi Nishiyama, Yuichi Ito, Ikuo Fukui
  • Publication number: 20150171392
    Abstract: Provided is a binder used for a heat-resistant porous layer which is comprised by a separator; the separator which comprises the binder and which is comprised by a non-aqueous electrolyte battery with improved stability; and the non-aqueous electrolyte battery comprising the separator. More specifically, provided is a binder for a separator of a non-aqueous electrolyte battery, the binder comprising at least a 2-cyanoethyl group-containing polymer having storage elasticity of 100 Pa or more in a mixed liquid of specified cyclic carbonate ester, specified chain carbonate ester and lithium phosphate hexafluoride.
    Type: Application
    Filed: March 2, 2015
    Publication date: June 18, 2015
    Inventors: Kazuhisa Hayakawa, Ikuo Fukui, Soji Tanioka, Masahiro Ohgata, Masaaki Kajitani
  • Patent number: 8916283
    Abstract: An object of the invention is to provide a binder for a separator which can be comprised by a non-aqueous electrolyte battery with improved heat resistance, a separator comprising the binder, and a non-aqueous electrolyte battery comprising the separator. More specifically, provided are a binder for a separator of a non-aqueous electrolyte battery comprising at least a 2-cyanoethyl group-containing polymer having a molecular weight distribution (Mw/Mn), which is a ratio of a weight-average molecular weight (Mw) to a number-average molecular weight (Mn), of 6 or less, the weight-average molecular weight (Mw) of 50,000 to 1,000,000, and 30% by weight or less of a low molecular weight portion having a molecular weight of 30,000 or less.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: December 23, 2014
    Assignees: Shin-Etsu Chemical Co., Ltd., Matsugaki Chemical Industries Co., Ltd.
    Inventors: Kazuhisa Hayakawa, Ikuo Fukui, Soji Tanioka, Masahiro Ohgata, Masaaki Kajitani
  • Patent number: 8771880
    Abstract: Object of the invention is to provide a binder for a separator which can be comprised by a non-aqueous electrolyte battery with improved battery properties and heat resistance; the separator comprising the binder; and the non-aqueous electrolyte battery comprising the separator. More specifically, provided is a binder for a separator of a non-aqueous electrolyte battery, the separator comprising a 2-cyanoethyl group-containing polymer having bis-cyanoethyl ether content of 0.5% by weight or less as an impurity.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: July 8, 2014
    Assignees: Shin-Etsu Chemical Co., Ltd., Matsugaki Chemical Industries Co., Ltd.
    Inventors: Ikuo Fukui, Kazuhisa Hayakawa, Soji Tanioka, Masahiro Ohgata, Masaaki Kajitani
  • Patent number: 8729185
    Abstract: Provided is a method for producing a 2-cyanoethyl group-containing organic compound having a high ratio of replacement by cyanoethyl groups and a high dielectric constant. More specifically, provided is a method for producing a 2-cyanoethyl group-containing organic compound comprising a step of reacting acrylonitrile with a hydroxyl group-containing organic compound in the presence of a quaternary ammonium salt as a catalyst through a Michael addition.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: May 20, 2014
    Assignees: Shin-Etsu Chemical Co., Ltd., Matsugaki Chemical Industries Co., Ltd.
    Inventors: Ikuo Fukui, Kazuhisa Hayakawa, Soji Tanioka, Masahiro Ohgata, Masaaki Kajitani
  • Patent number: 8663697
    Abstract: A granule or a tablet of a solid dispersion that allows a drug in a preparation to be rapidly dissolved without impairing dissolving of the solid dispersion, and a method for producing same is composed of 1 to 10% by weight of a poorly soluble drug, a water-soluble polymer, an excipient and 15 to 50% by weight if a disintegrator; a tablet of a solid dispersion composed of a poorly soluble drug, 1 to 5% by weight of a water-soluble polymer, an excipient and 15 to 50% by weight of a disintegrator; and a method for producing a granule or tablet of a solid dispersion comprising spraying a water-soluble polymer solution, in which a poorly soluble drug has been dispersed or dissolved, on a mixed powder of an excipient and a disintegrator, and granulating and drying a resultant.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: March 4, 2014
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Takafumi Hoshino, Fumie Kusaki, Ikuo Fukui
  • Patent number: 8663698
    Abstract: A granule or a tablet of a solid dispersion that allows a drug in a preparation to be rapidly dissolved without impairing dissolving of the solid dispersion, and a method for producing same is composed of 1 to 10% by weight of a poorly soluble drug, a water-soluble polymer, an excipient and 15 to 50% by weight if a disintegrator; a tablet of a solid dispersion composed of a poorly soluble drug, 1 to 5% by weight of a water-soluble polymer, an excipient and 15 to 50% by weight of a disintegrator; and a method for producing a granule or tablet of a solid dispersion comprising spraying a water-soluble polymer solution, in which a poorly soluble drug has been dispersed or dissolved, on a mixed powder of an excipient and a disintegrator, and granulating and drying a resultant.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: March 4, 2014
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Takafumi Hoshino, Fumie Kusaki, Ikuo Fukui
  • Patent number: 8357470
    Abstract: An organic solid electrolyte comprises a polymer obtained by (co)polymerization of cyanoethyl acrylate and/or cyanoethyl methacrylate, the polymer being doped with an inorganic ion salt. The electrolyte has a high ionic conductivity and is based on a hydroxyl-free polymer so that it may be used to construct a secondary battery which eliminates the risk of gas evolution.
    Type: Grant
    Filed: June 12, 2007
    Date of Patent: January 22, 2013
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventor: Ikuo Fukui
  • Patent number: 8354122
    Abstract: Provided are a granule or a tablet of a solid dispersion that allows a drug in a preparation to be rapidly dissolved without impairing the dissolution of the solid dispersion, and a method for producing the same.
    Type: Grant
    Filed: April 18, 2007
    Date of Patent: January 15, 2013
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Takafumi Hoshino, Fumie Kusaki, Ikuo Fukui
  • Patent number: 8343547
    Abstract: Provided are a solid dosage form comprising a solid dispersion that allows a drug in the preparation to be rapidly dissolved without compromising the solubility of the solid dispersion, and a method for producing the same. More specifically, provided is a solid dosage form comprising a solid dispersion, the dispersion comprising: a poorly soluble drug, a water-soluble polymer and a disintegrant, wherein the disintegrant is low-substituted hydroxypropylcellulose having an average particle size of 10 to 100 ?m and a specific surface area measured by BET method of at least 1.0 m2/g. Moreover, provided is a method for producing a solid dosage form comprising a solid dispersion, the method comprising steps of: spraying a water-soluble polymer solution in which a poorly soluble drug has been dispersed or dissolved, on a powder of low-substituted hydroxypropylcellulose having an average particle size of 10 to 100 ?m and a specific surface area measured by BET method of at least 1.
    Type: Grant
    Filed: August 1, 2007
    Date of Patent: January 1, 2013
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Takafumi Hoshino, Fumie Kusaki, Naosuke Maruyama, Yuichi Nishiyama, Ikuo Fukui, Hiroshi Umezawa
  • Patent number: 8343548
    Abstract: Provided are a solid dosage form comprising an enteric solid dispersion that allows a drug in the preparation to be rapidly dissolved without compromising the solubility of the solid dispersion, and a method for producing the same. More specifically, provided is a solid dosage form comprising an enteric solid dispersion comprising a poorly soluble drug, an enteric polymer and a disintegrant, wherein the disintegrant is low-substituted hydroxypropylcellulose having an average particle size of 10 to 100 ?m and a specific surface area measured by BET method of at least 1.0 m2/g. Moreover, provided is a method for producing a solid dosage form comprising an enteric solid dispersion, the method comprising steps of: spraying an enteric polymer solution in which a poorly soluble drug has been dispersed or dissolved, on a powder of low-substituted hydroxypropylcellulose having an average particle size of 10 to 100 ?m and a specific surface area measured by BET method of at least 1.
    Type: Grant
    Filed: August 1, 2007
    Date of Patent: January 1, 2013
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Fumie Kusaki, Takafumi Hoshino, Naosuke Maruyama, Yuichi Nishiyama, Ikuo Fukui, Hiroshi Umezawa
  • Patent number: 8304761
    Abstract: In an organic field effect transistor with an electrical conductor-insulator-semiconductor structure, the semiconductor layer is made of an organic compound, and the insulator layer is made of a polymer obtained through polymerization or copolymerization of 2-cyanoethyl acrylate and/or 2-cyanoethyl methacrylate.
    Type: Grant
    Filed: March 25, 2008
    Date of Patent: November 6, 2012
    Assignees: Osaka University, Shin-Etsu Chemical Co., Ltd.
    Inventors: Masateru Taniguchi, Tomoji Kawai, Hideyuki Kawaguchi, Ikuo Fukui
  • Patent number: 8288762
    Abstract: An organic field effect transistor (OFET) having a structure of a conductor layer/an insulator layer/a semiconductor layer is provided. This OFET comprises an insulator layer formed by mixing a polymer compound produced by polymerizing or copolymerizing a monomer represented by the formula (1): CH2?CHCOO—(CH2)2—CN??(1) and/or a monomer represented by the formula (2): CH2?C(CH3)COO—(CH2)2—CN??(2) with a polymerizable and/or crosslinkable organic compound other than the monomer represented by the formula (1) or (2); and a semiconductor layer comprising an organic compound.
    Type: Grant
    Filed: August 31, 2009
    Date of Patent: October 16, 2012
    Assignees: Osaka University, Shin-Etsu Chemical Co., Ltd.
    Inventors: Masateru Taniguchi, Tomoji Kawai, Hideyuki Kawaguchi, Ikuo Fukui
  • Publication number: 20120258350
    Abstract: Object of the invention is to provide a binder for a separator which can be comprised by a non-aqueous electrolyte battery with improved battery properties and heat resistance; the separator comprising the binder; and the non-aqueous electrolyte battery comprising the separator. More specifically, provided is a binder for a separator of a non-aqueous electrolyte battery, the separator comprising a 2-cyanoethyl group-containing polymer having bis-cyanoethyl ether content of 0.5% by weight or less as an impurity.
    Type: Application
    Filed: March 27, 2012
    Publication date: October 11, 2012
    Inventors: Ikuo Fukui, Kazuhisa Hayakawa, Soji Tanioka, Masahiro Ohgata, Masaaki Kajitani
  • Publication number: 20120258348
    Abstract: Provided is a binder used for a heat-resistant porous layer which is comprised by a separator; the separator which comprises the binder and which is comprised by a non-aqueous electrolyte battery with improved stability; and the non-aqueous electrolyte battery comprising the separator. More specifically, provided is a binder for a separator of a non-aqueous electrolyte battery, the binder comprising at least a 2-cyanoethyl group-containing polymer having storage elasticity of 100 Pa or more in a mixed liquid of specified cyclic carbonate ester, specified chain carbonate ester and lithium phosphate hexafluoride.
    Type: Application
    Filed: March 27, 2012
    Publication date: October 11, 2012
    Inventors: Kazuhisa Hayakawa, Ikuo Fukui, Soji Tanioka, Masahiro Ohgata, Masaaki Kajitani
  • Publication number: 20120258349
    Abstract: An object of the invention is to provide a binder for a separator which can be comprised by a non-aqueous electrolyte battery with improved heat resistance, a separator comprising the binder, and a non-aqueous electrolyte battery comprising the separator. More specifically, provided are a binder for a separator of a non-aqueous electrolyte battery comprising at least a 2-cyanoethyl group-containing polymer having a molecular weight distribution (Mw/Mn), which is a ratio of a weight-average molecular weight (Mw) to a number-average molecular weight (Mn), of 6 or less, the weight-average molecular weight (Mw) of 50,000 to 1,000,000, and 30% by weight or less of a low molecular weight portion having a molecular weight of 30,000 or less.
    Type: Application
    Filed: March 27, 2012
    Publication date: October 11, 2012
    Inventors: Kazuhisa Hayakawa, Ikuo Fukui, Soji Tanioka, Masahiro Ohgata, Masaaki Kajitani
  • Publication number: 20120259067
    Abstract: Provided is a method for producing a 2-cyanoethyl group-containing organic compound having a high ratio of replacement by cyanoethyl groups and a high dielectric constant. More specifically, provided is a method for producing a 2-cyanoethyl group-containing organic compound comprising a step of reacting acrylonitrile with a hydroxyl group-containing organic compound in the presence of a quaternary ammonium salt as a catalyst through a Michael addition.
    Type: Application
    Filed: March 27, 2012
    Publication date: October 11, 2012
    Inventors: Ikuo Fukui, Kazuhisa Hayakawa, Soji Tanioka, Masahiro Ohgata, Masaaki Kajitani
  • Patent number: 8088642
    Abstract: In a thin-film field effect transistor with a MIS structure, the materials of which the semiconductor and insulating layers are made are polymers which are dissolvable in organic solvents and have a weight average molecular weight of more than 2,000 to 1,000,000. Use of polymers for both the semiconductor layer and insulating layer of TFT eliminates such treatments as patterning and etching using photoresists in the prior art circuit-forming technology, reduces the probability of TFT defects and achieves a reduction of TFT manufacture cost.
    Type: Grant
    Filed: January 8, 2009
    Date of Patent: January 3, 2012
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventor: Ikuo Fukui
  • Publication number: 20100051927
    Abstract: An organic field effect transistor (OFET) having a structure of a conductor layer/an insulator layer/a semiconductor layer is provided. This OFET comprises an insulator layer formed by mixing a polymer compound produced by polymerizing or copolymerizing a monomer represented by the formula (1): CH2?CHCOO—(CH2)2—CN ??(1) and/or a monomer represented by the formula (2): CH2?C(CH3)COO—(CH2)2—CN ??(2) with a polymerizable and/or crosslinkable organic compound other than the monomer represented by the formula (1) or (2); and a semiconductor layer comprising an organic compound.
    Type: Application
    Filed: August 31, 2009
    Publication date: March 4, 2010
    Inventors: Masateru TANIGUCHI, Tomoji Kawai, Hideyuki Kawaguchi, Ikuo Fukui